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Functionally Graded Polymer Knee Implant For Enhanced Fixation, Wear Resistance, And Mechanical Properties And The Fabrication Thereof

Patent No. EP3746139 (titled "Functionally Graded Polymer Knee Implant For Enhanced Fixation, Wear Resistance, And Mechanical Properties And The Fabrication Thereof") was filed by Evonik Operations on Feb 1, 2019. The application was issued on Jul 5, 2023.

Patent Summary

A knee implant with enhanced wear-resistance and osseointegration, comprising a polymeric matrix with bioadditives at the bone-implant interface and/or a porous topography with micropores and macropores. The implant's polymeric matrix is fabricated using additive manufacturing and comprises a PAEK species such as PEEK, PEKK, or PEKEKK. The bioadditives and porous structure promote rapid bone ingrowth, improved load transfer, and reduced stress-shielding, while the polymeric matrix provides superior mechanical properties and biocompatibility.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
INVIBIO VICTREX MANUFACTURINGMar 19, 2024GILL JENNINGS & EVERY
INVIBIO VICTREX MANUFACTURINGMar 19, 2024GURUN

Dossier Documents

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EP3746139

EVONIK OPERATIONS
Application Number
EP19703285A
Filing Date
Feb 1, 2019
Status
Granted And Under Opposition
Jun 2, 2023
Publication Date
Jul 5, 2023
External Links
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